It's not stated if point S is on line RT. So it seems like the answer is "Sometimes". If the teacher tells you that point S is on line RT, then the answer will be "Always". This is because S divides RT into two parts RS and ST. Both of those parts are congruent.
It looks like C since it was the start on the other side.
Answer:
the second chaise is the answer
Answer: D) 300 degrees (counterclockwise)
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We want to have segment PQ rotate around the center so that it lines up with segment RF. Put another way: we want point P to rotate around the center to have it line up with point R, and we want Q to rotate so that it moves to point F.
Going clockwise, this is a rotation of 60 degrees as the diagram below shows (each blue arc is 30 degrees, so in total it's 30+30 = 60). In that diagram, I'm only focusing on moving point P. Point Q moves in a similar fashion. Since 60 is not an answer, this means 360-60 = 300 must be the answer.